Papillary thyroid cancer can metastasize lymphatically, and papillary thyroid cancer can develop lymphatic metastasis at an early stage. The exact cause of thyroid cancer, the most common malignant tumor of the thyroid gland in clinical practice, is not clear. Its pathological types include papillary carcinoma, follicular carcinoma, medullary carcinoma and undifferentiated carcinoma, among which papillary carcinoma has the highest incidence and lymphatic metastasis can occur in early stage. According to current clinical statistics, most patients with papillary thyroid cancer can be cured with timely radical thyroid cancer surgery, combined with lymph node dissection in the neck and postoperative chemotherapy, and have a good prognosis. Papillary thyroid cancer can develop lymphatic metastasis at an early stage, but with timely comprehensive treatment, the cure rate is very high and the prognosis is relatively good.